Power member



H. B. NEWHALL ET AL Pown MEMBR sept. 2s, 1923. 1,468,916l

F'ilevd June 2l. 1922.

lllllnlllllllllll Il Il llilll lllllllll l l Il "Il" I Q@ @M-M ATTORNEY entre Dr Ster `lei@e,etastri-1se.,

'HENRY B. NEW-Bannion PLAINFIELD, Ann Ernani N. nnsco'eir,` .orWEs-frirnLn, NEW" @Beitlknown' that we, HENRY Patented Sept. 25, 1923.

f Maaate" JERSEY; snrnnnscocxnss'mnon for Eismann rro NEWfJnRsEY' rounnnv'nnn y mennen corarANY, Aconronarro'nor new JERSEY; f .Y

- POWER v MEMBER.'

@Application filed ruieai, 19.22. nsentiiiid.;statali'I. i

Tofall 'who/mat mag/.cpncerny i i B NEWVHALm acitizen of--theUnited States,- anyd a resident of Plainfeld,`in the county of Unionand 5 StatefofNeWJersey, andxE'rrrAN lN. HES- Coen, acitizen loi the United States, and a--resident of .Westfield, in Athe county -oi `Uniony and State ,of .New-Jersey, have 4 made certain new; and useful Improvements in Power Members, l01E which 'the followingis a specilication, takeninconnection withthe flVe'haveshownitzinfconnectionwith a heavy capacity hoisting mechanism, but. it `equally applicable itself tok Voperate theater curtains, traveling cranes yor-any mechanism operated byi-.azflexibleA member 1 having af. loop in which .our device Vcan ,beamounted Ourfrinvention.ffurther Beirat-esito hoisting mechanism, and more p'artic'zulaidyy to ana-uxiliary'hoisting me'clninism to be .usedr in 'connection zwithV a 'liexible f driving member oifaheavybapacity hoisting'mechan-ism.

More 'specilicall-y', it irela'tes nto lan fauxiliary device to Operate the ordinary chain member l0f A`a stan-dardy fehain hoist. Of coursefit :i'sftobe'uirderstood that while we have shown the flexible membeninitheform of a chain, any othensuitableform of flexif ble member may be used.-

Our present invention..i sra.1r improvement and simplification of the inventionfcovered by United States Letters Patent 1,288,137 patented Dec. 7 1918 to Henry B.V Newhall, jr., now known as Henry B. Newhall, and one of the joint inventors of this case.

Our invention further relates to certain combinations, and details of construction, which will be more fully hereinafter described and pointed out in the claims.

F ig. v1 is a side elevation of the ordinary form of standard chain hoist showing our auxiliary hoist mechanism cooperating with a llexible drive member' shown as a drive chain Fig. 2 is a on the line 2-2 of Fig. 1;

Fig. 3 is a vertical section substantially.

on the line 3-3 of Fig. 2.

horizontal section substantially commonfliise locations wh'erettheyarenot used oftenenough towarranttheaddi i expense of 1nstalling-electric fcranesp the same' capacity. v For example ,K such large hand Power .cranes .,areplnow' u'se'd; in factories,

newer .houses 'Sugar rllland where it its@ necessaryto Iplwe' armatures', dlg-mantle Opere-tins equipm@ equippedxwith lthi@l..ordinaryjfcliain. blocks 'Y whichv are r operated byY afflexiblegniember 0r' A'hand chain.. Filo-f operate. lthese heavy j cranesfoften takesagreatldeal'offtime;bf?

i A i ten-:heure -t0` hQ'Ste-Il armatura Orf? @ther vsimilar heavyl portion ofthe equipment, only fa few. feet, vso lthatthefnecessary workfin connection with, orffuponf, VUit :may be; accom; plished.` This is Qnjacconntof the multi-V tude: of .gear and cha-in {re'ductions necessary to'hoist'heavy loads by ha-nd power.

By our invention, with Jai very 'slight advditional outlay, the` ordinary heavytfcapacty hand crane.; can be A Speedd .up j S0V that it may be -operated ten for-' fgnnrtimes 201.

more, manually.

faster ,thatV it. can .fbe operatedy t fn. lleatens. wheremwe .than -neSuQh crane `isgusedourauxili-ary hoisting; mech7n anism may benioved from .one-toanother cases, Ewhere ,T :it is ignoti, desired- .to y,operate it Y .for .any reaso'm;itc'an be readily 'disconnect- ..3 f.

ed and vlaid aside-.until .suchgtime V.as sity may vbe' desirabley tousefit iafgain..A -1

Frequently the flexible ydrive i ferent form of flexible member, or the drive. member may be of the'sanie form but off.

' different size. In either'case, it will performl its. unctionequally well without any manual adjustment or manipulatiomror the AoperationV of any other member.

In the particular embodiment of our in-l vention shown in the drawing, but to which of course we are not to be limited except by the scope of our claims, 1 is our auxiliary power member formed of a closed housing 2 having an interior chamber Swithin which is mounted an axle 4 upon which is keyed al members of different shapes and contour so that no further adjustment or operation is necessary to connect the 'auxiliary power Y member 1 to the flexible 'drive member, other than by simply lifting it by the handles 9, 9 and letting said member rest in the bight of the flexible drive member V10.

One forml of our invention is illustrated in the drawings. Y For example, we may use a sheave 11 keyed to the axle 4 and provided with a deepperipheral groove or score 12 lined with some resilient material 13, such as rubber. We have shown, by way of example, the sheave 11 provided with the rubber ring-13 which is firmly clamped onto the sheave by theplate 14 and securing screws 15, 15, though of course any suitable arrangement may be employed which will accomplishlthe function herein set forth.l l Connected with the housing 2 is an arm 16 having the counter-balance weight 17.

Regardles'sof the size of the flexible drive member 10 and whether or not it is a rope, chain, or other flexible member, all that is necessary in our invention is lto simply lift theauxiliary power member 1 bythe handles 9, 9 and place it so that the bight of theV flexible driving member 10 will be seated within the groove 18 of the resilient ring 13', which-will immediately adjust itself and conform to the particular contour and size of the flexible drive member without the aid 8 will cause the auxiliary power member to climb,for tend to-cl1mb, the flexible drive chain 10 at high speed and in that manner operate the'load chain 20 having'the hook 21.` The motor-8 is controlled by tlievswitch 22, the current bein-g"y supplied Aby the cable 23. f Y

Having thusfdescribed this invention in connection withl an illustrative 'embodiment thereof, to the detailslof which wedo'not desire to be limited, what is claimed as new and what is desired to secure by Letters Patent is set'forth inthe appendedfclaims.`V

What we claim risz- W 1. In a hoisting mechanism thecombination of a main hoistingvmechanism operated i by a flexible drive member, and an auxiliary power 'member provided with an overhung power sheave adapted to be dropped intoand held in the bight o-f the flexible member to operate it.

2. A power member'adapted to detachably engage and rest in the bight of a liexible drive member, including a housing, an axle Vmounted in the housing, meansto drive said axle, an overhung power sheave mounted on the axle and extending on the exterior of the housing and adapted to engage with, be supported by, and drive the flexible drive member by simply dropping the overhung power sheave in the bight of the flexible drive member. f

HENRY B. ivuwrinnnv YETI-IAN N. VH ESCOK.` Witnesses: i

A. M. WILLIAMS, M. R. RYAN, E. F. SMITH,

R. IRWIN.V 

